Prediction of Splitting Tensile Strength from Cylinder Compressive Strength of Concrete by Support Vector Machine

Table 3

Comparison of experimental results to testing results of RBF, polynomial of SVM-I, and other models.

𝑓𝑐 (MPa)	𝑓spt (MPa)	GEP-I [9]	ACI 363R	ACI 318	CEB-FIP	Regression [9]	RBF	Polynomial
44.80	3.80	−0.31	0.15	−0.05	−0.02	−0.23	−0.01	−0.33
56.20	4.40	−0.25	0.02	−0.20	0.00	−0.27	−0.41	−0.20
53.40	3.60	0.39	0.71	0.49	0.65	0.39	0.33	0.39
56.70	4.60	−0.42	−0.16	−0.38	−0.17	−0.45	−0.09	−0.36
64.50	4.80	−0.18	−0.06	−0.30	0.02	−0.30	−0.18	−0.12
66.50	4.70	0.03	0.11	−0.13	0.22	−0.11	0.10	0.01
65.40	4.30	0.37	0.47	0.23	0.57	0.24	0.21	0.43
73.80	4.90	0.23	0.17	−0.09	0.38	0.01	0.22	0.14
74.00	5.30	−0.16	−0.22	−0.48	−0.01	−0.39	−0.26	−0.15
72.50	5.00	0.06	0.02	−0.23	0.22	−0.15	0.24	−0.06
74.60	4.90	0.28	0.20	−0.06	0.42	0.04	0.06	0.15
77.90	5.50	−0.14	−0.29	−0.56	−0.03	−0.42	−0.36	−0.19
79.10	5.20	0.22	0.05	−0.22	0.33	−0.07	0.01	0.15
84.20	5.70	0.00	−0.29	−0.56	0.06	−0.37	−0.34	−0.28
83.30	5.90	−0.25	−0.52	−0.79	−0.18	−0.60	−0.60	−0.39
80.10	5.30	0.15	−0.02	−0.29	0.27	−0.13	−0.22	0.10
86.50	5.50	0.32	−0.01	−0.29	0.37	−0.07	−0.27	0.12
102.00	5.50	1.15	0.46	0.16	1.05	0.53	0.37	0.34
101.00	6.50	0.09	−0.57	−0.87	0.01	−0.51	−0.45	−0.60
111.00	6.20	0.92	0.02	−0.30	0.73	0.16	0.40	−0.17
94.50	5.80	0.45	−0.06	−0.36	0.42	−0.06	0.08	−0.01
118.00	6.20	1.28	0.21	−0.12	1.02	0.41	0.64	−0.14
19.00	2.30	−0.43	0.27	0.14	−0.16	−0.23	−0.04	−1.00
20.00	2.40	−0.46	0.24	0.10	−0.19	−0.26	−0.13	−0.96
28.60	2.90	−0.40	0.26	0.09	−0.09	−0.21	0.11	−0.67
28.90	3.00	−0.48	0.17	0.01	−0.17	−0.30	0.08	−0.82
36.10	3.30	−0.33	0.24	0.06	−0.02	−0.19	−0.11	−0.48
44.50	3.70	−0.23	0.24	0.04	0.07	−0.14	0.07	−0.26
23.00	2.50	−0.36	0.33	0.19	−0.07	−0.16	−0.37	−0.82
33.00	3.50	−0.72	−0.11	−0.28	−0.41	−0.56	−0.43	−1.02
58.00	4.20	0.05	0.29	0.06	0.30	0.01	−0.25	0.20
69.00	4.50	0.37	0.40	0.15	0.55	0.20	0.12	0.44
36.00	3.30	−0.34	0.24	0.06	−0.03	−0.19	−0.04	−0.45
42.80	3.90	−0.53	−0.04	−0.24	−0.23	−0.43	−0.19	−0.63
59.30	4.00	0.33	0.54	0.31	0.56	0.27	0.29	0.40
63.30	4.50	0.05	0.19	−0.04	0.26	−0.05	−0.18	0.20
67.70	4.70	0.10	0.15	−0.09	0.28	−0.06	0.26	0.07
77.00	5.10	0.21	0.08	−0.19	0.33	−0.06	−0.05	0.01
49.90	4.30	−0.51	−0.13	−0.34	−0.23	−0.47	−0.32	−0.45
96.70	5.70	0.63	0.10	−0.19	0.62	0.12	0.05	0.01
61.70	4.60	−0.14	0.03	−0.20	0.08	−0.22	−0.36	−0.08
73.20	5.10	0.00	−0.05	−0.31	0.15	−0.22	0.17	−0.03
86.50	5.50	0.32	−0.01	−0.29	0.37	−0.07	−0.27	0.12
92.30	5.90	0.23	−0.23	−0.52	0.23	−0.25	0.10	−0.19